Terex Demag Gmbh

Terex Global Gmbh

Terex Cranes Germany Gmbh

Thilo Jene

Frank Conrad

Hans-Joachim Rathke

Achim Schütz

Heiko Heintz

Ascan Klein

A drive of a sliding connecting member of a locking system of a telescopic system, having a telescopic cylinder () with an outer telescopic section () and an inner telescopic section (), which are each provided with a locking hole () into which a locking bolt () can be entered and withdrawn in a releasable manner via the sliding connecting member (), provided with a sliding path (), and a grasper (), wherein the locking bolt () is designed to be moveable by means of an engagement member () running in the sliding path () in such a way that the locking bolt () effects a linear movement and the jib sections () can be connected to one another by insertion of the locking bolt () into the bolting hole () and the sliding connecting member () can be driven by an electric linear drive ().

Drive for a sliding connecting member of a locking system of a telescopic system of a crane jib

The invention relates to a monitoring and alarm device for construction machinery having long and heavy booms, such as cranes, in particular mobile cranes, is characterized in that a monitor system is provided, which monitors parameters that may change in case of an undesired lowering of the boom or of boom sections in a non-operating condition, and triggers an optical and/acoustic and/or wireless alarm system if the parameters change.

Monitoring and alarm device for construction machinery

A hydraulic control circuit for the overcontrol of a hydraulic system which controls a drive, in particular for controlling a hydraulic motor () for driving a slewing gear of a crane superstructure, wherein the pressure lines () for the hydraulic motor () are connected by means of a supply piston () to a hydraulic pump () or a tank (), and the pressure lines () are each assigned pilot valves (), shuttle valves () and directional control valves (). The shuttle valves () are connected by means of control lines () to an activatable proportional pilot valve (), such that the separately activatable directional control valves () can thus be activated by means of said pressure, which is built up by the pilot valve ().

Hydraulic control circuit for overcontrol of a slewing gear drive

Growing community of inventors

Spiesen, Germany

Thilo Jene